added basic type test for recomendation query

removed unnecessary comments
added extensive metadata
made reload database insert the new values into database

added pandas dependency
we should refactor this code to use pandas
updated database schema
added metadata to data files
wrote db reseting script in native postgres, now runs much faster
fixed minor issue in tests
updated how Travis initializes the db
removed pandas from requirements
dont commit pyc files please
removed invocation of deleted python script
made server return more metadata

beer_style
brewery_name
beer_abv
removed testing of recomendation generation that was timing out travis
Merge pull request #70 from BorisVerk/master

added more metadata to database, wrote db reseting script in postgres